feat: implement runtime configuration package with multi-org support (#14624)

runtime configuration package
---------

Signed-off-by: Danny Kopping <danny@coder.com>
Co-authored-by: Danny Kopping <danny@coder.com>

coderd/runtimeconfig/util.go

@@ -0,0 +1,11 @@
+package runtimeconfig
+
+import (
+	"reflect"
+)
+
+func create[T any]() T {
+	var zero T
+	//nolint:forcetypeassert
+	return reflect.New(reflect.TypeOf(zero).Elem()).Interface().(T)
+}